function set_main_one(i){
	select_main_one(i);
}
function select_main_one(i){
	switch(i){
		case 1:
		document.getElementById("main_one1").style.display="block";
		document.getElementById("main_one2").style.display="none";
		document.getElementById("main_one3").style.display="none";
		break;
		case 2:
		document.getElementById("main_one1").style.display="none";
		document.getElementById("main_one2").style.display="block";
		document.getElementById("main_one3").style.display="none";
		break;
		case 3:
		document.getElementById("main_one1").style.display="none";
		document.getElementById("main_one2").style.display="none";
		document.getElementById("main_one3").style.display="block";
		break;

	}
}


function set_main_two(i){
	select_main_two(i);
}
function select_main_two(i){
	switch(i){
		case 1:
		document.getElementById("main_one5").style.display="block";
		document.getElementById("main_one6").style.display="none";
		document.getElementById("main_one7").style.display="none";
		break;
		case 2:
		document.getElementById("main_one5").style.display="none";
		document.getElementById("main_one6").style.display="block";
		document.getElementById("main_one7").style.display="none";
		break;
		case 3:
		document.getElementById("main_one5").style.display="none";
		document.getElementById("main_one6").style.display="none";
		document.getElementById("main_one7").style.display="block";
		break;

	}
}